Currently there is no share parameters between launch configurations or to change several parameters at once. The idea is to let the user define Launch Configuration Templates that behave like cookie cutters. A configuration can be based on a template, which seeds attributes in the configuration with the settings specified in the template. Once a configuration has been created, the user can override any initial settings from the template. The user can also modify the template and push changes out to the configurations based on it. A configuration maintains a backpointer to its template, but is a complete standalone configuration than can be launched, exported, shared, etc.
Initial work and analysis has already been documented on the wiki and in bug 41353. The goal of this item is to provide a solution to implement the desired behavior described in bug 41353.
You should demonstrate that you have the skills necessary to complete this work item.
You should indicate the terms under which you will complete this work, including the fee you will charge upon completion and any other financial or time-related constraints.
Unless stated otherwise, the expected outcome will include you ensuring the proposed contributions have been accepted by the respective PMC, and that all documentation related to the solution is complete.